Improvement in presses for forcing paint from cans



a. H CHIN-NUCK. Presses for Forcing Paint from Dan's. N0.155,144. Patnted Sept.22,.137*4 WE GRAPH"; CO.FHOTO-IJTH.39 Mn PARK PLACE,N.Y

UNITED STATES PATENT QFFICE.

GEORGE H. OHINNOOK, OF BROOKLYN, NEW YORK, ASSIGNOR TO LEONARD RICHARDSON, OF SAME PLACE.

IMPROVEMENT IN PRESSES FOR FORCING PAINT FROM CANS.

Specification forming part of Letters Patent No. 155,144, dated September 22, 1874 application filed June 6, 1874.

To all whom it may concern Be it known that I, GEORGE H. OHINNocK, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in Paint-Gan Presses, of which the following is a specification:

This invention is more particularly designed for forcing thick paints and similar viscid substances from cans provided with an outlet at or near the bottom, and when in use open at the top to permit the action of the plunger of the press.

The invention consists in a novel combination of a swiveled plunger, an actuating-screw, a screw-clutch, a standard, andahorizontal platform or base-plate, whereby is obtained an apparatus for the purpose designated, which operates without friction upon the contents of the can, which provides for the slow and forceful downward movement of the plunger, and also for its quick and facile lifting, when required, and which may be conveniently and efficiently worked without fixed or permanent attachvment to a table, bench, or like support.

Figure 1 is a front view of a press made according to my invention, and Fig. 2 is a detached vertical sectional "iew of one part thereof.

A is a circular base-plate or platform, having fixed at one edge thereof the standard B, the upper end of this standard being curved over and inward until the socket 0, formed in said end for the reception of the screw D, is nearly or quite over the center of the platform. The screw D is provided at its upper end with a hand-wheel, A, whereby it may be turned, and at its lower extremity has swiveled to it the circular plunger F. This swiveling of the plunger permits it to work vertically, but without rotation from the action of the screw, and, consequently, when the press is in use, as hereinafter fully set forth, the plunger does not grind upon or move with frictional resistance from the contents of the can, by which means the operation of the screw is not retarded, as would otherwise be the case, and the easy working of the apparatus, which otherwise would begreatly impeded, is secured. Within the socket, through which the screw D is passed vertically, and

at opposite sides thereof, are two jaws, a, constituting a clutch, E, the lower extremities, a, of which have sectional screw-threads formed upon their inner surfaces to play into the threads of the screw D, as shown more plainly in Fig. 2. The upper ends I) of the jaws a are pressed outward by springs c, which tend to keep the screw-sectioned lower ends a in connection with the screw D to provide, during such connection, a fixed nut for the latter.

In using the press, a can, furnished with an outlet at or near its bottom, and having an internal diameter but slightly greater than the diameter of the plunger, has its top removed, and is placed upon the platform A in a position axially coincident with the plunger, and either with or without a layer of paper or like material interposed between the said plunger and the contents of the can. By turning the screw in the proper direction the plunger is forced down, its swiveled connection with the screw preventing or avoiding any rotating movement on the part of the said plunger, which, by the frictional resistance induced, would otherwise interfere with the easy turning of the screw. This downward movement of the plunger forces out the contents of the can in quantity proportioned to the horizontal area of the latter andthe movement of the plunger, the quantity ejected being thus under complete control, and practically under measurement. I

By simply pressing inward the upper ends I) of the jaws to of the clutch E, the said jaws are made to release the screw, so that the latter, with the plunger attached, may be quickly and easily lifted by a simple sliding movement. As, for example, when it is desired to remove one can from the apparatus and place another in its stead.

As thus constructed my improved paint-can press may be readily used in any part of a shop, the platform holding the can against the pressure of the screw, so that no fixed attachment of the press to a table or like support is required, one can may be readily substituted for another-as, for example, when different kinds of paint are required for use in small quantities-and the most perfect freedom in the working of the screw is combined the actuating-screw D, the screw-clutch E, the standard B, and the platform, the whole combined and arranged for use as a paint-can press, substantially as and for the purpose set forth.

GEO. H. OHINNOOK.

Witnesses:

JAMES A. WHITNEY, WILLIAM B. PHAlR. 

